Full Supplement - British Cardiovascular Society

BCS Abstracts 2011
8 DOES THE ADDITION OF A RADIAL ARTERY GRAFT
IMPROVE SURVIVAL AFTER HIGHER RISK CORONARY
SURGERY? A PROPENSITY-SCORE ANALYSIS
doi:10.1136/heartjnl-2011-300198.8
1 C H Yap,
2 P A Hayward,
2 W Y Shi,
1 D T Dinh,
1 C M Reid,
3,4 G C Shardey,
3,4 J A Smith.
1 Department of Epidemiology and Preventative Medicine, Monash
University, Melbourne, UK; 2 Department of Cardiac Surgery, Austin Hospital, University
of Melbourne, Melbourne, UK; 3 Department of Cardiothoracic Surgery and Surgery,
Monash Medical Centre, Monash University, Melbourne, UK; 4 Department of Surgery,
Monash Medical Centre, Monash University, Melbourne, UK
Introduction The use of the radial artery as a second arterial graft
during coronary surgery has become popular due to high patency,
encouraging clinical outcomes and low harvest site complication
rates. However it is not clear whether higher risk patients derive
such benefits. We sought to assess this by examining outcomes in
higher risk subgroups.
Methods A multicentre database was analysed. From 2001 to 2009,
11 388 patients underwent isolated multivessel coronary surgery. We
identified a higher risk subgroup (n¼3149) according to emergent
status, coronary instability, low ejection fraction, aortic counterpulsation
or anticoagulant status. Among these, 2231 (71%) received
at least 1 radial artery graft in addition to a left internal thoracic
artery (LITA). The remaining 918 (29%) received LITA and veins
only. Propensity-score matching and adjustment was performed to
correct for group differences.
Results Patients who did not receive a radial artery were more likely to
be older (mean age, radial: 66610 years vs vein: 71610, p